• SME MR97-185
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SME MR97-185

  • Characterization Of Indentation Impressions On Human Enamel For Hardness Measurement
  • standard by Society of Manufacturing Engineers, 06/01/1997
  • Publisher: SME

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This paper presents results from investigating indentation impressions on human enamel under micro-hardness tests. The experiments of hardness testing were performed on a microhardness indentation machine under different loading conditions. Images of indentation impressions were obtained using an environmental scanning electron microscope. Geometrical shapes of hardness indentations were visualized in three-dimensional space using computer graphics. Quantitative information was obtained through atomic force measurements to characterize pile-up, sink-in, and elastic recovery of enamel. Special efforts have been made to study the microstructural effect of the calcified rods orientations on the fracture patterns after indentation.

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